My Disco did it again

Well:
After 6 months or so of no problems at all, now the power door lock on the driver's side front door(actually, the driver's door) quit working.I tried unplugging the connector inside the door panel,cleaned the prongs, put a bit of wd-40 in the cable coming from the door handle, as well as at the inside-the-door part of the outside door handle, still nothing.While putting things back, the green little connector for the door knob rod to the actuator itself broke, so now to get things worse, the knob fell inside the door panel.I still can lock the car on the three other doors with the alarm activating as well, but nothing on the drivers door though, not even the sound of the thing locking and unlocking in that door.The alarm works well, as kind of ignoring that door lock, if I open it when it has been activated with the remote, it still goes off.Does anyone has an idea of the actuator part price(new) and the part number?As you can see I still need a parts manual CD.Any help appreciated.
Thanks,
Carlos
p.s. My disco is a '99 series ll SE v-8 5-seater and automatic.